[Pulmonary tumor embolization].
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Humans↗
Biomedical subjects
T Shishihara
Publications and source records attributed to T Shishihara.
[A case of Pryce's type I intralobar pulmonary sequestration diagnosed by noninvasive techniques].
The patient was a female who came to our hospital with a chief complaint of hemoptysis. Radiography of the chest demonstrated a funicular shadow, and CT of the chest also revealed a similar shadow in contact with the thoracic aorta enhanced by the contrast material. Pulmonary arteriography and aortography showed that the left S8, S9 and S10 areas were supplied by abnormal blood vessels bifurcating from the thoracic aorta, rather than the pulmonary artery. This finding was supported by scintigraphy of the pulmonary blood flow and pulmonary RI angiography. Since bronchography revealed no obvious abnormality in the bronchial system, the diagnosis of Pryce's type I intralobar pulmonary sequestration was established, and left lower lobectomy was carried out. While the evidence of abnormal blood vessels is important for the definitive diagnosis of pulmonary sequestration, concurrent image processing of the results of scintigraphy of the pulmonary blood flow and pulmonary RI angiography permits noninvasive demonstration of the fact that the sequestral pulmonary tissue is regulated by the systemic circulatory system, rather than the pulmonary circulatory system and thus is a useful technique.
Adult↗
[A case of congenital bronchial atresia complaining of chest pain with anomalous pulmonary venous drainage].
A 21-year-old male was admitted to Chiba University Hospital because of chest pain on heavy exercise and an abnormal shadow on chest X-ray film. The chest film showed a nodular shadow located near the left hilum and marked hyperlucency in the left upper lung filed. These findings on chest film had existed for 13 years with gradual progression of the hyperlucent field. The nodular shadow appeared to be located in left S1 + 2 but bronchographic examination revealed that this abnormal shadow was independent of the branches of B1 + 2. Delays of imaging and washout in the ventilation scintigram with 133Xe gas and perfusion defect in the pulmonary perfusion scintigram with 133Xe were found in the left upper lung field. The patient was diagnosed as congenital bronchial atresia based on the evidence of special features on chest X-ray film and pulmonary ventilation/perfusion scintigrams. Furthermore, it was revealed by pulmonary venography that the left upper pulmonary vein entered the left brachiocephalic vein. Left upper lobectomy was carried out because of his complaint of chest pain on exertion and the compression of the left lower lobe by the overinflating lung. We discussed the cause of and relationship between congenital bronchial atresia and anomalous pulmonary venous drainage.
Adult↗